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chp 4 tissues
anatomy chapter 4 tissues
Term | Definition |
---|---|
epithelial tissue | continuous sheet of tightly packed cells...covers body's surface |
squamous | flat plate like cells |
cuboidal | cube shaped and contain more cytoplasm than squamous |
columnar | higher than they are wide, tall and cylindrical |
stratified | cells stacked on top of other cells and the upper layers do not touch the basement membrane |
exocrine glands | secrete their products into ducts |
endocrine glands | secrete hormones directly into the blood |
simple squamous epithelium | allows for ready diffusion or filtration because of thinness |
simple cuboidal epithelium | secretes and absorbs |
simple columnar epithelium | secretes mucus by goblet cells |
pseudostratified columnar epithelium | provides protection and secretes mucus |
stratified squamous epithelium | resists abrasion and penetration by pathogens |
transitional epithelium | stretches to allow filling or urinary tract |
connective tissue | the most widespread and most varied of all tissue |
collagenous fibers | strong and flexible but resist stretching |
reticular fibers | support small structures such as capillaries |
elastic fibers | made of protein, can stretch and recoil like a rubber band |
areolar tissue | connects many adjacent structures in the body |
adipose tissue | dominated by fat calls, helps insulate the body to conserve heat |
reticular tissue | consists of loose network or reticular fibers and cells |
fascia | sheets or bands formed by dense connective tissue |
hyaline cartilage | forms most of the fetal skeleton |
elastic cartilage | provides flexible support to the external ear |
fibrocartilage | forms the discs between the vertebrae and in the knee joint |
osseous tissue | bone |
osteocytes | bone cells |
plasma | liquid matrix of blood |
blood | transports oxygen, nutrients, hormones, wastes from one part of the body to another |
neurons | the units that cpnduct nervous impulses |
neuroglia | protect and assist the neurons |
skeletal muscle | consists of long thin cells called muscle fiber |
cardiac muscle | found only in the heart |
smooth muscle | consists of long spindle shaped cells |
regeneration | occurs when damaged tissue cells are replaced with the same type of cell |
fibrosis | occurs when damaged tissue cells are replaced with scar tissue |
mucous membranes | line the body surfaces that open directly to the body's exterior |
cutaneous membrane | known as the skin...body's largest membrane |
serous membrane | composed of simple squamous epithelium resting on a thin layer of areolar connective tissue |
chondrocytes | cartilage forming cells |
epithelium | layer of cells forming the epidermis of the skin |
fibroblasts | cells that secrete collagen |
glandular epithelium | epithelium consisting of glands that secrete particular substance |
goblet cell | modified columnar cell containing secretory vesicles that produce large quantities of mucus |
granulation tissue | newly formed tissue inside a wound |
stem cell | specialized cell that can differentiate into many different types of cells |
pleural membrane | surrounds each lung and lines the thoracic cavity |
pericardial membrane | surrounds the heart |
peritoneal membrane | line the abdominal cavity and covers the abdominal organs |
synovial membrane | line the spaces between bones |
parietal membrane | serous membrane that lines the body cavities in one continuous sheet |
visceral membrane | the part of the membrane that covers the organs |
mucus | a watery secretion that coats and protects the cells of the membrane |
axon | a single long nerve fiber in the neuron |
striated muscle | skeletal muscle or voluntary muscle...striped |
involuntary muscle | cardiac muscle |
dense fibrous connective tissue | tendons, ligaments, fascia, dermis of the skin |
bone | provides support, protection, serves as a calcium reservoir |
tendons | attach muscle to bone |
ligaments | attach bone to bone |
extracellular matrix | allows connective tissue to be diverse |
loose connective tissue | has stretchable quality |
basement membrane | underlying connective tissue |
simple squamous epithelium | alveoli, lining of blood and lymphatic vessels |
simple cuboidal epithelium | ducts and tubules of many organs, including the kidneys |
simple columnar epithelium | line the intestines |
pseudostratified squamous epithelium | lines trachea, large bronchi, and nasal mucosa |
stratified squamous epithelium | epidermis of the skin, esophagus, vagina |
transitional epithelium | urinary tract |
simple epithelia | every cell touches the basement membrane |
surface tissue | epithelium |
tissues | simple groups of similar cells that perform a common function |
epithelial tissue | has no capillaries, gets nutrients from basement membrane |
simple squamous epithelium | allows gas and fluid exchange |
epidermis | kertanizing epithelium |
glands | cells or organs that secrete something |
multicellular | similar or dissimilar cells that combine secretions |
cartilage | gets nutrients by diffusion |
bone | arranged into haversian systems |
blood | white blood cells, red blood cells and platelets |
skeletal | attach to bone to move skeleton |
cardiac | electrical impulses produced in the heart cause cells to contract in unison |
mucosa | mucous membrane |
perichondrium | covers cartilage |
superficial fascia | between skin and muscles |
deep fascia | covers skeletal muscles, anchors tendons to muscle |
meninges | cover the brain and spinal cord |
fibrous pericardium | forms a sac around the heart, lined by parietal pericardium |